package cn.lovezsm.bjcjbase.util;

import java.io.*;

public class FileUtils {
    public static int getTotalLines(File file) throws IOException {
        int lineNum = 0;

        BufferedReader reader = new BufferedReader(new FileReader(file));
        while (reader.readLine()!=null){
            lineNum++;
        }

        reader.close();
        return lineNum;
    }
    public static String getExtensionName(String filename) {
        if ((filename != null) && (filename.length() > 0)) {
            int dot = filename.lastIndexOf('.');
            if ((dot >-1) && (dot < (filename.length() - 1))) {
                return filename.substring(dot + 1);
            }
        }
        return filename;
    }
    /*
     * Java文件操作 获取不带扩展名的文件名
     *
     *  Created on: 2011-8-2
     *      Author: blueeagle
     */
    public static String getFileNameNoEx(String filename) {
        if ((filename != null) && (filename.length() > 0)) {
            int dot = filename.lastIndexOf('.');
            if ((dot >-1) && (dot < (filename.length()))) {
                return filename.substring(0, dot);
            }
        }
        return filename;
    }
}
